[1] Fixed command blocking while in combat not working when other plugins cancel commands first
[2] Small improvements & fixes

[1] Added per-player toggle system with unified /jc toggle command (fast crystal, totem particles, explosion particles, explosion sounds, chainmail kit)
[2] Implemented invisibility chat hide feature to block/filter messages from invisible players
[3] Fixed empty action bar spam by sending empty message only once when clearing
[4] Added proper PacketEvents-based packet interception for totem and explosion effects
[5] Fixed fast crystal toggle double-toggle sync bug by centralizing state management
[6] Added configurable chainmail kit on respawn with toggle support

[1] Fixed Action Bar not appearing during combat for OPs due to bypass permission auto-granting
[2] Added Fast Crystal PvP feature with instant placement and invulnerability removal
[3] Improved configuration system with automatic migration and version tracking

[1] Fixed a issue with 1.21.11

[1] Fixed Action Bar not appearing due to missing default configuration values
[2] Resolved issue where Kill Rewards were not executing upon player death
[3] Improved Combat Logout punishment to ensure items drop reliably before player death

[1] Added Exclusive 1v1 duel setting (config.yml)
[2] Fixed being always out of Combat when killed
[3] More Fixes/adjustments